SUSAN Sarandon has revealed she had a passionate fling with David Bowie and how she still loves taking drugs at 67 — but only if she is outside in nature.

The Tammy actor opened up to The Daily Beast as she promoted her new film which sees her play Melissa McCarthy’s grandmother.

She spoke about attending hippie-loving art festival Burning Man in the Nevada desert last year but laments that she can’t go this year because her daughter, actor Eva Amurri, is having her first child.

“I don’t think I’d feel very free to indulge if I was waiting for a message to see if she’s gone into labour,” she said.

Asked if she took any psychedelics at Burning Man, Sarandon replied, “Well, it’s pretty psychedelic to begin with. But, yeah, I’m not new to the idea of mushrooms. I don’t really like chemical things, really,” she said. “(Psychologist and psychedelic-drug advocate) Timothy Leary was a friend of mine, so that acid was nice and pure, but I’m not really looking for chemicals, and I don’t like to feel speedy. But I’ve done Ayahuasca (psychedelic tea) and I’ve done mushrooms and things like that. But I like those drugs in the outdoors — I’m not a city-tripper.”

Peace-loving Sarandon said the world would be a better place if everyone just smoked a little marijuana.

“If more people were smoking instead of drinking, people don’t get mean on weed, don’t beat up their wives on weed, and don’t drive crazy on weed. They just get hungry, don’t go out of the house, or laugh a lot. I think it would make for a much more gentle world,” she said.

Sarandon also spoke about her love affair with David Bowie, who she met around the time they filmed The Hunger.

Love affair with Sarandon ... David Bowie and Susan Sarandon hooked up while filing The Hunger.

“He’s worth idolising. He’s extraordinary. That was a really interesting period. I wasn’t supposed to have kids, and I’m the oldest of nine and had mothered all of them, so I wasn’t ever in a mode to where I was looking to settle down and raise a family, so that definitely changes the gene pool you’re dipping into,” she said. “But Bowie’s just a really interesting person, and so bright. He’s a talent, and a painter, and … he’s great.”

Before meeting Bowie, Sarandon was married to actor Chris Sarandon for 12 years, divorcing in 1979.

She then had one of Hollywood’s most enduring relationships with Tim Robbins, 55, with whom she has two sons.

Sarandon’s daughter Eva is from her relationship with 55-year-old director Franco Amurri.

She is now dating toyboy Jonathan Bricklin, 36, who helps her run her ping pong business in New York.